Chrysanthemum plant named ‘Rosy Yoigloo’

ABSTRACT

A new and distinct of  Chrysanthemum  plant named ‘Rosy Yoigloo’, characterized by its upright, outwardly spreading and mounding plant habit; freely branching habit; dense and full plant habit; uniform and freely flowering habit; duplex-type inflorescences with obovate-shaped ray florets; red-colored ray florets; and natural season flowering about September 18 th  in the Northern Hemisphere.

Botanical designation: Chrysanthemum×morifolium.

Cultivar denomination: ‘ROSY YOIGLOO’.

Cross-reference to related application: Chrysanthemum Plant Named ‘Warm Yoigloo’; U.S. Plant patent application Ser. No. 11/705,880; Mark A. Smith, Applicant; filed concurrently.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Chrysanthemum plant, botanically known as Chrysanthemum×morifolium, commercially grown as a perennial garden Chrysanthemum and hereinafter referred to by the name ‘Rosy Yoigloo’.

The objective of the breeding program is to create new perennial garden-type Chrysanthemum cultivars having inflorescences with desirable inflorescence forms, attractive floret colors and good garden performance.

The new Chrysanthemum is a naturally-occurring whole plant mutation of the Chrysanthemum×morifolium cultivar Warm Yoigloo, disclosed in a U.S. Plant patent application filed concurrently. The new Chrysanthemum was discovered and selected by the Inventor as a single flowering plant within a population of plants of the cultivar Warm Yoigloo in December, 2003, in Alva, Fla. The selection of this plant was based on its desirable inflorescence color and good form and substance.

Asexual reproduction of the new Chrysanthemum by vegetative cuttings was first conducted in Alva, Fla. in February, 2004. Asexual reproduction by cuttings has shown that the unique features of this new Chrysanthemum are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the cultivar Rosy Yoigloo have not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Rosy Yoigloo’. These characteristics in combination distinguish ‘Rosy Yoigloo’ as a new and distinct garden Chrysanthemum cultivar:

-   -   1. Upright, outwardly spreading and mounding plant habit.     -   2. Freely branching habit; dense and full plant habit.     -   3. Uniform and freely flowering habit.     -   4. Duplex-type inflorescences with obovate-shaped ray florets.     -   5. Red-colored ray florets.     -   6. Natural season flowering about September 18^(th) in the         Northern Hemisphere.

In side-by-side comparisons conducted in Alva, Fla., plants of the new Chrysanthemum differed from plants of the parent, the cultivar Warm Yoigloo, in the following characteristics:

-   -   1. Plants of the new Chrysanthemum flowered later than plants of         the cultivar Warm Yoigloo when grown under natural season         conditions.     -   2. Plants of the new Chrysanthemum and the cultivar Warm Yoigloo         differed in ray floret color as plants of the cultivar Warm         Yoigloo had orange bronze-colored ray florets.

Plants of the new Chrysanthemum can be compared to plants of the Chrysanthemum cultivar MN 92-333-2, disclosed in U.S. Plant Pat. No. 14,197. In side-by-side comparisons conducted in Alva, Fla. plants of the new Chrysanthemum differed from plants of the cultivar MN 92-333-2 in the following characteristics:

-   -   1. Plants of the new Chrysanthemum were smaller, fuller and more         mounted than plants of the cultivar MN 92-333-2.     -   2. Plants of the new Chrysanthemum had smaller inflorescences         with more ray florets than plants of the cultivar MN 92-333-2.     -   3. Plants of the new Chrysanthemum flowered ten days earlier         than plants of the cultivar MN 92-333-2 when grown under natural         season conditions.     -   4. Ray floret color of plants of the new Chrysanthemum did not         fade as quickly as ray floret color of plants of the cultivar MN         92-333-2.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Chrysanthemum. These photographs show the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Chrysanthemum.

The photograph at the bottom of the sheet comprises a side perspective view of a typical flowering plant of ‘Rosy Yoigloo’.

The photograph at the top of the sheet is a close-up view of typical inflorescences of ‘Rosy Yoigloo’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown in Pendleton, S.C. during the summer in an outdoor nursery and under conditions and practices which approximate those generally used in commercial garden Chrysanthemum production. During the production of the plants, day temperatures averaged 32° C. and night temperatures averaged 21° C. Plants were grown in 20 cm containers under natural season conditions. Plants used in the photographs and for the description were about four months old. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum×morifolium cultivar Rosy     Yoigloo. -   Parentage: Naturally-occurring whole plant mutation of the     Chrysanthemum×morifolium cultivar Warm Yoigloo, disclosed in a U.S.     Plant Patent application filed concurrently. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots.—About four days at temperatures of             about 21° C.         -   Time to produce a rooted young plant.—About ten to twelve             days at temperatures of about 21° C.         -   Root description.—Fine, fibrous; white in color.         -   Rooting habit.—Freely branching. -   Plant description:     -   -   Appearance.—Perennial duplex-type garden Chrysanthemum. Stem             upright and outwardly spreading giving a uniformly mounded             appearance to the plant. Freely branching habit, about eight             lateral branches each with multiple secondary and tertiary             branches; pinching is not required; dense and full plant             habit. Strong and vigorous growth habit.         -   Plant height.—About 29 cm.         -   Plant width.—About 57 cm.         -   Lateral branches.—Length: About 30 cm. Diameter: About 9 mm.             Internode length: About 1.5 cm to 2.5 cm. Strength: Strong.             Texture: Pubescent. Color: 148A to 148B.         -   Leaves.—Arrangement: Alternate, simple. Length: About 4 cm.             Width: About 2.4 cm. Apex: Acuminate. Base: Attenuate.             Margin: Palmately lobed, sinuses between lateral lobes             mostly convergent. Texture, upper and lower surfaces:             Pubescence; veins prominent on lower surface. Color:             Developing foliage, upper surface: 147A. Developing foliage,             lower surface: Darker than 147B. Fully expanded foliage,             upper surface: 137A; venation, 137B. Fully expanded foliage,             lower surface: 138B; venation, 138B. Petiole: Length: About             6 mm. Diameter: About 3 mm. Texture, upper and lower             surfaces: Pubescent. Color, upper surface: 138A. Color,             lower surface: 148C. -   Inflorescence description:     -   -   Appearance.—Duplex-type inflorescence form with             obovate-shaped ray florets. Inflorescences borne on             terminals above foliage. Disk and ray florets arranged             acropetally on a capitulum. Inflorescences fragrant, typical             of Chrysanthemum.         -   Flowering response.—Under natural season conditions, plants             flower about September 18^(th) in the Northern Hemisphere.         -   Postproduction longevity.—Inflorescences maintain good color             and substance for about four weeks in an outdoor nursery.             Inflorescences persistent.         -   Quantity of inflorescences.—About 100 inflorescences develop             per lateral branch.         -   Inflorescence bud.—Height: About 9 mm. Diameter: About             1.4 cm. Shape: Oblate. Color: 183C.         -   Inflorescence size.—Diameter: About 3.5 cm. Depth (height):             About 1.7 cm. Disc diameter: About 4 mm. Receptacle height:             About 4 mm. Receptacle diameter: About 1.5 cm.         -   Ray florets.—Shape: Obovate. Orientation: Initially upright,             then about 90° from vertical; eventually reflexing. Aspect:             Initially incurved, then mostly flat. Length: About 1.6 cm.             Width: About 4 mm. Apex: Emarginate. Base: Acute. Margin:             Entire. Texture, upper and lower surfaces: Smooth, glabrous;             longitudinally ribbed. Number of ray florets per             inflorescence: About 170 arranged in about 14 to 15 whorls.             Color: When opening, upper surface: 185A to 185B. When             opening, lower surface: 173D. Fully opened, upper surface:             180A; color becoming closer to 178D with development. Fully             opened, lower surface: 173C to 173D; color becoming closer             to 165C with development.         -   Disc florets.—Shape: Tubular, elongated. Length: About 3 mm.             Diameter: Less than 1 mm. Number of disc florets per             inflorescence: About 116. Color, immature. Apex: Close to             14A. Mid-section: Close to 14C. Base: Close to 2A. Color,             mature: Apex: Close to 14A. Mid-section: Close to 14D. Base:             Close to 2A.         -   Phyllaries.—Number of phyllaries per inflorescence: About 24             arranged in about five whorls. Length: About 6 mm. Width:             About 2 mm. Shape: Elliptical. Apex: Acute. Base: Truncate.             Texture, upper surface: Smooth, glabrous. Texture, lower             surface: Pubescent. Color, upper surface: Close to 147C.             Color, lower surface: Close to 147B.         -   Peduncles.—Length: About 5.5 cm. Diameter: About 1 mm.             Angle: Mostly upright or curving upright. Strength: Strong.             Texture: Pubescent. Color: Close to 148C.         -   Reproductive organs.—Androecium: None observed on disc             florets. Gynoecium: Present on both ray and disc florets.             Pistil length: About 4 mm. Stigma shape: Bi-parted. Stigma             color: Close to 10A. Style length: About 2 mm. Style color:             Close to 10D. Ovary color: Close to 157A.         -   Seed/fruit.—Seed and fruit production has not been observed. -   Disease/pest resistance: Resistance to pathogens and pests common to     Chrysanthemums has not been observed on plants grown under     commercial conditions. -   Garden performance: Plants of the new Chrysanthemum have     demonstrated excellent garden performance and will overwinter in     USDA Zones 5 and higher; plants of the new Chrysanthemum have been     observed to tolerate high temperature of about 38° C. 

1. A new and distinct Chrysanthemum plant named ‘Rosy Yoigloo’ as illustrated and described. 